Fluid-gage.



'i/VQRCESTER, NEW YORK.

ELUID-GGE.

l fi 29, 265.

Application filed October 25,

T all whom it may conc-em Be it known that I, NOAH S. WRIGHT, citil zenof the United States, residing at East Worcester, in the county ofOtsega and State of New York have invented certainnevv and useiiulImprovements in Fluid- Gages, of which the following is a'speciiication,reference being had to the accompanying drawings.

This invention relates to Huid gages and more particularly to gagesofthat type Which are designed for use. upon automo' biles to indicateto the operator the quantity of oil in the engine crank case, and theprimary object of the present invention is to provide an improvedconstruction and arrangement of parts which will obviate fall liabilityof the coagulated oil or foreign matter passing from the crank case intothe lloat tube of the gage. i

In its inore'specific aspect, my invention f resides in the provision ofan oil receiving cup or chamber and improved means for maintaining thesame 1n fluid-tight engage- 'ment With the drain nipplev of the crank4produce a device of the above character which may be easily and quicklyapplied to the crank case of automobiles now in general use, said devicebeing simple in construction, highly eiiicient and reliable in actualuse and capable of manufacture at comparatively small cost. f

With the above and other objects in view as Will become apparent as thedescription proceeds, the invention consists in certain constructions.,,combinations and arrange- Yments of the parts that l shall hereinafterfully describe and claim.y l i For a full understanding of theinvention, u reference is to be had to the following de- -Specication ofLetters Laten't.

Patented Feb.

22, 1915 1.913. seriai im. 7137,31?.

scription and which* Y Figure l is a side elevation of-a fluid gageembodying the present invention, the float tube' and the oil'receivingcup being shown in section; Fig. 2 'is a top plan view; 60

F ig. 3 is a detail end view of th'e'nut.

Referring in detail. to the drawing, 5

designates the nipple of ,an engine crank case through which the oil inwhich the cranks of the engine shaft operate may'65 drain. The bottom ofthis nipple is provided With an opening 6 in Which'a nut 7' to behereinafter specifically described is adapted to be threaded.

The invention forming the subject matter 7o oi' the present applicationincludes an oil 'receiving cup or receptacle generally designated by thenumeral 8. This cup consists oi an outer cylindrical Wall 9 and an innerannular frusto-conical Wall l0. This latter Wall is integrally formedwith or soldered to the upper edge of the outer annular Wall 9. Thesmaller lower end of the inner wall l0 is closed by the horizontal baseWall 11 which is disposed in spaced relation to the so lower edge oi theouter cylindrical Wall 9.

l2 designates a float tube which is connected by the neck 13 to theouter cylindrical wall 9 of the cup or receptacle, and a suitable float14: operates in this tube. The 85 ends of a cord., Wire or otherflexible element l5 connected to the upper and lower sides respectivelyof this lloat. The upper and lovrer ends of the float tube 12 arecentrally provided with circular sockets or recesses l@ to receive theends of tubes 17 and 18 respectively. Suitable caps 19 are threaded uponthe' ends of the tube l2 to retain the tubes li" and 18 in connectiontherewith.

Through the tubesv 17 and i8, the lexibleele- 95 ment 15 extends. VTheother ends of said tubes are disposed in contiguous relation to anindicator 20 which embodiesa suitable frame 2] in which a pulley 2Q isarranged,

said pulley being mounted upon the shaft 23. One end of this shaft isprovided with a pointer 24 tor movement with respect to the dial platewhich is mounted upon the frame 2l. The pulley 22 is provided with aperipheral groove to receive the flexible 10S element l5.

As above stated, the nut 7 is adapted tc be 'threaded in the end of thenipple 5 oic the accompanying drawings, in 55 openingopens into theinterior ot' the nip-` ple and obviates liability of the openingQS beingcompletely closed by Waste matter accumulating therein. The end face ofthe enlarged hea-d 27 is provided with a. diametricaily'egitendinggroove or slot 30 which trawerzsesthe opening Q8 in the nut. It willfurtherbe observed 'from reference ,to Fig. l that tlie end face of thehead 27 is convex n which` feature is of particular importance inthreaded ainge the ople'rationof the device as ivill be appreciatedfrom', iefollowing description. The lo'iver end ofthe` outer cylindricalWall 9 of the cup is provided with exterior screw.

threads for engiiigeinent by the interiorly iiioi' the cap 3l.

In the use olmy invention, the cup or receptacle 8 is-applied to thenipple 5 or' the crankr case of the engine as shown in Fig. l, the,threaded portion of' the nut i' being disposed through the opening inthe bottom Wall il ol: said cup and threaded in the opening oi? thenipple. lt will'be understood' that the float tube l2 and the indicatorQ() may be mounted in any desired manner and at anyconvenient point uponthe body ot' the machine'. The cap v3l is then threaded vupon the outercylindrical Wall 9 ofthe clip and the body Wall of said cap trictionallyengages with the convex end face of the head 2T of the nut T. It willbi, understood that the iiange on the nut 27 engaging against the bottomof the inner wall l0 of the cup holds said wall at the edge ot theopening QG in Huid tight engagement with the bottom face ot the nipple.Yihen the cap 31 is threaded upon the lower end of the outer Wall 9, thepressure of the nut 27 against the central portion ot this cap tends Vto force the 'same downwardiy, and draw the Harige 3201i the outer edgeot' the cap inwardly, thus applying a, pressure to the outer Wall 9andi'conseguently forcing said vail at its upper edge together with theinner Wall 10 into tight engagement against-l the periphery of thenipple. The cap 3l projects only a ,slight distance below the nipple andis therefore not liable to become 7, .thus preserving the fluid tightengagement of the bottom Wallll of the cup with the nipple. Thus theescape of the oil between the cup and the nipple is effectuallyprevented.- The lioat tabel?, isof course provided at its upper end withsuitable air outlet apertures indicated at 33 so that the oil may risetherein and elevate the float. As the float is moved, theA pointer Q4ot' the indicator is also moved with respect to the graduaticns upon theface ot' the dial plate through the medium of the flexible connection 15which is attached to said float.

several advantages of my improved iiuid gage ivill be fully and clearlyunderstood.

.is the device consists of but few parts.v

which are all of very simple form, it ivill be appreciated that thesamecan be produced at suiall manufacturing cost. The invention alsoapplicable to the crank case ot auto mobile, ot' the various makes noivin general use. and requires no structural alterations to be madetherein. The cup or receptacle iuay be easily and quickly applied to thenipple of the crank case or removed therefrom when it is desired toclean the case and drain the oil Jfrom 'the same. While I have abovedescribed the particular form, construction and arrangement of'invention,

communication between the interior of the' nipple and the cup, meansclosing one end Iot' the cup and coperating with said first named meansto retain the cup in Huid-tight engagement with the nipple, and a liquidgage including a tube connected to said cup. 2. The combination of thenipple of an engine crank case,` a cup adapted to be applied to saidnipple, means for establishing communication betweenfthe interior ofthe' nipple and the cup, a closure lcap adapted to be threaded upononevend of said cup and coperating with said means to hold the cup influid-tight engagement i'ivithrthe nipple,

and a liquid gage including a tube connect' ed to said cup.4

3. The combination of the nipple of'an engine crank case, a cilpAadapted cto be applied to said nipple, a ,nut disposed through one Wallot' the cup and threaded in the nip-.

ple to retain the cup thereupon, said nut be! ing provided with anopening establishing v tudinnl opening,

engine crank euse, e cup consisting of inner and outer epaeed Walls,said inner wail being mlepred to surround and inclose said ni ppe. ubase wall closingr saidinner Wall at one end and provided with anopening, anut adapted for insertion through said opening :mil havingthreaded engagement inthe wall of the nipple, Suid nut being providedwith an opening establishing communication between the interior of thenipple and the cup, a, cloeure cap threaded upon one end of the outerwall of the cup and adapted to bea-r ageinet said nut to hold the innerWall of the eup neloee frictional engagement upon the nipple, and afluid gage including a tubi eonneeted to the cup and in communicui ionwith the Space between the cup Walls.

5. The combination of the nipple of an engine ernnl: euse, a cupconsisting of inner and outer spaced walls secured together at one oftheir ends, Said inner wall being adapted to surround the nipple, :tbase Wall closing the other end of said inner wall and provided with anopening, n nut adapted for ineertion through said opening und havingthreaded engagement in the Wall of the nipple, said nut being providedwith a longithe end of the nut eX- teriorly of .the nipple being convexand having n slot therein intersecting said opening, a closure capremovably engaged upon the l The, combina-tion of the nipple of anA ing,

end of the outer Well of the cup and bearing against the convex end faceof the nut, the Slot in the face of the nut opening into the spacebetween the inner-and outer cup walls, und :t fiuid'ga'ge including ntube connected to the cup and in communication with the space betweenthe Walls thereof.

6. The eombinatlon of the nipple of an engine crank ense, n @upconsisting of inner and outer Walls connected together at one of theirends, a base wall closing the other end of said inner Wall and spacedfrom the corresponding end of the outer wall, said inner wall beingadapted to surround and frictionally engage with the Wall oi the nipple,said base Wall being provided with an openaV nut adapted for insertionthrough said opening and having threaded engagement in the wall of thenipple, said nut havinga head formed on one end provided @'ith n convexface, Said nut being further prol vided with a longitudinal opening aredat one end end opening into the interior of the nipple, .said convexface of the nut having a slot therein intersecting the other end of seidopening, e closure cap threaded upon the end of the outer Wall of thecup and adapted to bear against the convex face of said nut to force theinnervwall of the cup into fluid-tight engagement with the wall of thenipple, and :l fluid gage including a. tube conneetedto the outer wallot the cup and in communication with the space between the cup walls.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

I NOAH S. WRIGHT. Witnesses: Lome DANTE,

Roy HARTWELL.

